Cheap Flights from CHI to SEA
The Cheapest Round-trip Tickets from Chicago to Seattle
| Departure at | Return at | Stops | Airline | Find tickets |
|---|---|---|---|---|
| 27 May 2026 | 31 May 2026 | Direct |  | RT from 164 |
The Cheapest Flights for this Month from Chicago to Seattle
| Departure at | Return at | Stops | Airline | Find tickets |
|---|---|---|---|---|
| 30 March 2026 | 31 March 2026 | 1 Stop |  | RT from 494 |
| 27 May 2026 | 31 May 2026 | Direct | | RT from 164 |
| 28 May 2026 | 31 May 2026 | 1 Stop |  | RT from 172 |
| 5 June 2026 | 12 June 2026 | Direct |  | RT from 359 |
| 6 June 2026 | 12 June 2026 | 1 Stop | | RT from 320 |
| 11 June 2026 | 15 June 2026 | Direct | | RT from 317 |
| 12 June 2026 | 17 June 2026 | Direct | | RT from 360 |
| 17 June 2026 | 21 June 2026 | Direct |  | RT from 321 |
| 24 June 2026 | 28 June 2026 | Direct | | RT from 343 |
The Cheapest Flights from Chicago to Seattle for the Year Ahead
| Departure at | Return at | Stops | Airline | Find tickets |
|---|---|---|---|---|
| 30 March 2026 | 31 March 2026 | 1 Stop | | RT from 494 |
| 27 May 2026 | 31 May 2026 | Direct | | RT from 164 |
| 11 June 2026 | 15 June 2026 | Direct | | RT from 317 |